Most research today supports soil sampling and testing as a best management practice. Growers should take the opportunity learn as much as possible about their soil in order to produce their best yields. This includes knowing the make-up and nutrient levels in their soil to make more an accurate and effective fertility plan.
The following explains the process of soil sampling and highlights key data growers will learn from testing and analyzing their soil.
The primary objective of soil sampling is to provide a representative sample of the fertility within the field.
Based on the variability throughout the field, the number of acres per sample will vary.
Most research suggests that growers choose 15 to 20 random areas to be sampled within the field.
Field composite samples, normally 8 to 16 oz. of soil, can be co-mingled and then a sample of the collection is sent to the lab.
If the field is divided into different zones, repeat the process for each zone. Samples need to be labeled for tracking purposes. Field maps can help with tracking.
Once samples are collected, they can be submitted to a local university or commercial lab via their submission guidelines. Charges for the samples will vary depending upon the testing requested.
The more data collected; the more information growers will have available to help them make decisions. With soil sampling, an abundance of data is available, but for growers the most valuable information will boil down to five broad groups:
As growers and their nutrient advisors receive more information about these five areas, they will be able to make more informed fertility decisions. They will also be able to address potential issues during the early stages to help attain their overall goal of achieving better yields.
To learn more about soil sampling conversations, fertilizer recommendations, or products like N-Edge or Trivar, talk to your CHS Agronomy representative or visit the CHS Agronomy website.